Hi, just arrived.
I have just bought a non working DD-92.
All is working but no sound and bargraph display…
Changed capacitors (already leaked) but it shows FFFFFFFF, as before the capacxitor update.
The two segment before the Fs keep changing during the test, any clue about that?
I will test the head resistance and the path to the ICs for conductivity, what are the normal values for the heads resistance?
Any advices or tests I could try are welcomed.
I have electronics repair experience and a the tools needed.